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//------------------------------------------------------------------------------
// GB_ijlist.h: return kth item, i = I [k], in an index list
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2025, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
#ifndef GB_IJLIST_H
#define GB_IJLIST_H
//------------------------------------------------------------------------------
// kind of index list, Ikind and Jkind, and assign variations
//------------------------------------------------------------------------------
#define GB_ALL 0
#define GB_RANGE 1
#define GB_STRIDE 2
#define GB_LIST 3
#define GB_ASSIGN 0
#define GB_SUBASSIGN 1
#define GB_ROW_ASSIGN 2
#define GB_COL_ASSIGN 3
//------------------------------------------------------------------------------
// GB_IJLIST: given k, return the kth item i = I [k] in the list (32/64 bit)
//------------------------------------------------------------------------------
#define GB_IJLIST(I,k,Ikind,Icolon) \
( \
(Ikind == GB_ALL) ? (k) : \
((Ikind == GB_RANGE) ? (Icolon [GxB_BEGIN] + (k)) : \
((Ikind == GB_STRIDE) ? (Icolon [GxB_BEGIN] + (k) * Icolon [GxB_INC]) : \
/* else GB_LIST */ (GB_IGET (I, k)))) \
)
#endif
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